STUDER INNOTEC
AJ
AJ V2.0
4
Connection
The connection of the inverter should be done
with utmost care. First connect the consumer
devices so as to prevent any further contact
once the 230 V voltage is present. The
technical data and connection’s description, is
either under one side of the inverter or onto
the cable connection side. Installation is to be
made only by authorised persons.
Connecting the consumer devices
The AJ inverter is supplied with a 230 V cable
for the consumer devices. This connection
must be done observing the colours:
Yellow-green: earth
Brown: phase
Blue: neutral
Once the consumer devices are connected,
make sure that they are turned off before
connecting the battery
Note
An Inverter constitutes an independent power
supply from the grid and could be considered
in the same way as a generator set. The
phase and the neutral are not differentiated.
The voltage in between the phase and the
neutral is 230V. An appropriate divisor
establishes a 115V voltage in between
neutral and earth, and the phase and earth.
According to the local prescriptions or
particular requirement, (example: use of a
ground fault detector) a true neutral may be
established by connecting the neutral and the
earth wire together. The so connected point,
may be connected with an existing earth:
earth of building; the chassis of vehicle or the
hull of ship.
Equivalent schema
Connecting the battery
Once the consumer devices are connected,
make sure that the installations instructions of
the 230V has been followed with utmost care
before connecting the battery
.
The cable of the battery is supplied with the
inverter and already connected in it.
A fuse must be installed on the battery.
Connect the battery observing carefully the
polarity. The AJ inverter,
except AJ 2100-12,
is protected against inversion by a fuse, but if
the polarity should be inverted, the inverter
must be sent to the manufacturer for control.
Connect the battery using the following
colours:
BLACK cable: negative pole (-)
RED cable: positive pole (+)
For AJ 275-400, dominant colour is applica-
ble
48V
+
DC/AC
1uF
R1
R2
Fuse
Blue
Green
/ Yellow
Brown
R1=R2= 2,7M ohm (not existing in AJ 275 - AJ 350 - AJ 400)
1uF/63V
2x10nF
Metalic housing
